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A preliminary biological survey of waters in the Birch Mountains, Alberta
Grant, by the City, of the use of additional land in Bronx Park
The story of the cattle fever tick; what every southern child should know about cattle ticks
Tabular view of the orders & leading families of Myriapoda, Arachnida, Crustacea, Annelida and Entozoa
Soil survey of the Solomonsville area, Arizona
Dinosaur dreaming : field report
Description of the coal flora of the Carboniferous formation in Pennsylvania and throughout the United States ...
Freshwater mussels in Montana : comprehensive results from 3 years of SWG funded surveys
Lessons in elementary agriculture for Alabama schools : outlines by months
Revision of Aphelonotus Uhler (Hemiptera, Heteroptera, Pachynomidae), with description of six new species and documentation of nymphal morphology for…